The maximum feed speed is:
Fmax = (4 x Encoderimpulses x Leadscrewpitch) / Motorsteps
Example:
Encoderimpulses: 400 Impulses/rev
Motorsteps: 400 Steps/rev
Leadscrewpitch: 4mm
Fmax = (4 x 400 x 4) / 400 = 6400/400 = 16mm / rev
If you now set a reduction ratio of 1:2, you halve Fmax. This can be compensated by using 800
instead of 400 encoder pulses or by halving the steps of the motor, i.e. changing from half step
to full step.
Unfortunately, this cannot be done arbitrarily, since at high speeds too many impulses are re-
ceived by the controller and it no longer follows with the processing of the control signals. But
up to a speed of 2000 rpm you should manage with 800 pulses/rev for the encoder.
As you see, there are a few settings which you can use to tune the performance. Use the steps/
rev of the motors together with the impulses/rev of the encoder to nd a good functioning
system.
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